An excellent recent review of the captive husbandry of 13-lined ground squirrels was published by Merriman et al. (2012) at the University of Wisconsin, who maintain an NIH-funded breeding colony of these animals for their own use and for shipping to other investigators. In the wild the...
The research, part of the Long-term Behavioral Ecology of California Ground Squirrels Project, was led by Jennifer E. Smith of the University of Wisconsin-Eau Claire and UC Davis. The team observed 74 interactions between ground squirrels and voles between June 10 and July 30, 2024, with 42%...
The Karginsky/Middle Wisconsinan interglacial (55–25 kyr BP, MIS 3 [ref. 32]), which included two cooling (ca. 40–45 and 30–35 kyr BP) and three warming events33 caused a further fragmentation of the natural habitat of arctic ground squirrels. Following the beginning of the Last...
A population of thirteen-lined ground squirrels in Madison, Wisconsin, was studied during the spring and summer of 1961 and 1962. Conception dates varied within and between years. Males moved greater distances than females. Spring seemed... OJ Rongstad - 《Journal of Mammalogy》 被引量: 150发...
(proportion males) at weaning for 1,049 litters over 24 years from a population of Richardson’s ground squirrels (Urocitellus richardsonii), a polygynandrous, annually reproducing mammal in which litter size averages from six to seven offspring and sons are significantly heavier than daughters at...
Arctic ground squirrels were well adapted to the cold, arid climates, steppe-tundra vegetation and well-drained loessal soils that characterize cold stages of Late Pleistocene Beringia. These glacial conditions enabled arctic ground squirrel populations to expand their range to the interior regions of ...
They are also found in far Eastern and Central Indiana, and the north-west areas of Lake Michigan on the adjoining parts of Michigan City and Chicago. Franklin Ground Squirrels are also seen in central Minnesota and southern Wisconsin.These squirrels live on the borders of wooden vegetation and...
see Methods). We then applied ADMIXTURE projection to estimate proportions of learned ancestries within the remaining 99 squirrels. The lowest cross-validation error occurred atK = 3 (Fig.2a), where individuals separated into Colorado (CO), Illinois (IL), and Wisconsin (WI) components. The...
Sometimes the fruits are still immature when they fall and need extra time to ripen from inedible green to rich, golden yellow. You could leave them on the ground for a week or two, but because the squirrels also love this treat, I pick up the fallen fruits every couple of days and br...
Glutathione (GSH) is the major thiol-disulfide redox buffer in cells and is a critical component of antioxidant defense. Here we examined GSH redox balance in the intestinal mucosa during the annual cycle of 13-lined ground squirrels ( Spermophilus tridecemlineatus ). The ratio of reduced GSH ...